Casio G-Shock GD-100 Series Digital Resin Band Wrist Watch GD-100-1A.
Casio G-Shock GD-100 Series Digital Resin Band Wrist Watch GD-100-1B.
Case size (L× W× H) : 55 × 51.2 × 17.4 mm
Weight : 72 g
Case and bezel material : Resin
Resin Band
Shock Resistant
200-meter water resistance
Power supply and battery life : Approx. battery life: 7 years on CR2025
Mineral Glass
Multi Time (4 different cities)
World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
1/100-second stopwatch
Measuring capacity: 23:59’59.99”
Measuring modes: Elapsed time, split time, 1st-2nd place times
Countdown timer
Measuring unit: 1/10 second
Input range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
5 alarms (daily or one-time)
Hourly time signal
Flash alert
Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer time up alarm
LED backlight
Auto light switch, selectable illumination duration, afterglow
LED:White
Full auto-calendar (to year 2099)
Mute feature ; Button operation tone on/off
Accuracy: ±15 seconds per month
12/24-hour format
Regular timekeeping:
Hour, minute, second, pm, month, date, day
